Demanding definition is somewhat elusive. It refers to someone who is exceptionally particular and disapproving. A persnickety individual usually pay strict attention to detail and has high standards when it comes to standards and flawlessness. Their meticulousness can be seen as admirable, but it can also exacerbate overly demanding censure and unjustified dissatisfaction. Being persnickety is regularly related to exact attention to detail but can also be seen as a type of obsessiveness.

Pernickety Definition Meaning MerriamWebster